package org.opencv.core;

import java.util.Arrays;
import java.util.List;

public class MatOfFloat4 extends Mat {
	// 32FC4
	private static final int _depth = CvType.CV_32F;
	private static final int _channels = 4;

	public MatOfFloat4() {
		super();
	}

	protected MatOfFloat4(long addr) {
		super(addr);
		if (!empty() && checkVector(_channels, _depth) < 0)
			throw new IllegalArgumentException("Incompatible Mat");
		// FIXME: do we need release() here?
	}

	public static MatOfFloat4 fromNativeAddr(long addr) {
		return new MatOfFloat4(addr);
	}

	public MatOfFloat4(Mat m) {
		super(m, Range.all());
		if (!empty() && checkVector(_channels, _depth) < 0)
			throw new IllegalArgumentException("Incompatible Mat");
		// FIXME: do we need release() here?
	}

	public MatOfFloat4(float... a) {
		super();
		fromArray(a);
	}

	public void alloc(int elemNumber) {
		if (elemNumber > 0)
			super.create(elemNumber, 1, CvType.makeType(_depth, _channels));
	}

	public void fromArray(float... a) {
		if (a == null || a.length == 0)
			return;
		int num = a.length / _channels;
		alloc(num);
		put(0, 0, a); // TODO: check ret val!
	}

	public float[] toArray() {
		int num = checkVector(_channels, _depth);
		if (num < 0)
			throw new RuntimeException("Native Mat has unexpected type or size: " + toString());
		float[] a = new float[num * _channels];
		if (num == 0)
			return a;
		get(0, 0, a); // TODO: check ret val!
		return a;
	}

	public void fromList(List<Float> lb) {
		if (lb == null || lb.size() == 0)
			return;
		Float ab[] = lb.toArray(new Float[0]);
		float a[] = new float[ab.length];
		for (int i = 0; i < ab.length; i++)
			a[i] = ab[i];
		fromArray(a);
	}

	public List<Float> toList() {
		float[] a = toArray();
		Float ab[] = new Float[a.length];
		for (int i = 0; i < a.length; i++)
			ab[i] = a[i];
		return Arrays.asList(ab);
	}
}
